I originally posted an article at this address for getting an external display to work on the Asto Slide without the proprietary HDMI dongle. It was based on what is needed for the Gemini PDA. Now that I have the Astro Slide, it has become apparent that the solution is actually simpler. So I’ve separated them into different articles. If your phone is neither the Gemini or the Astro, it’s worth starting with the Astro instructions, and move onto the Gemini instructions if you need to.